Originally Posted by
John Wallace2
I have the DX3R Pro and I can adjust the servo speed via the scroll down menu in the TX. Does the DX4R DSMR radio have the same feature? I've looked at all the literature the new DSMR radio and it's all about how great the AVC is, which BTW as I read the ROAR rule book is illegal at ROAR races. Also will the DX4R DMSR radio work without AVC, on the older Spectrum receivers that are compatible with my DX3R Pro?
Yes I can confirm my DX4s has a servo speed adjustment. I tried playing with it and it didn't seem to have any effect. Whats it do?
2nd answer, Manual states DX4 is backwards compatible with all DSM and DSMR receivers. Also it looks like Spektrum forsaw ROAR banning it's use because they have included a disable jumper feature. Out of AVC mode it functions as a normal 4 channel with telemetry.